package com.study.book.gym.char03;

import java.util.concurrent.LinkedBlockingDeque;
import java.util.concurrent.ThreadPoolExecutor;
import java.util.concurrent.TimeUnit;

/**
 * @author MI
 * @version 1.0
 * @date 2021/5/13 23:02
 */
public class ExtThreadPool {
    public static class MyTask implements Runnable {
        private String name;

        public MyTask(String name) {
            this.name = name;
        }

        public static void main(String[] args) throws InterruptedException {
            final ThreadPoolExecutor poolExecutor = new ThreadPoolExecutor(5, 5, 0L, TimeUnit.MILLISECONDS,
                    new LinkedBlockingDeque<Runnable>()) {
                @Override
                protected void beforeExecute(Thread t, Runnable r) {
                    System.out.println("准备执行" + ((MyTask) r).name);
                }

                @Override
                protected void afterExecute(Runnable r, Throwable t) {
                    System.out.println("执行完成" + ((MyTask) r).name);
                }

                @Override
                protected void terminated() {
                    System.out.println("线程退出");
                }
            };
            for (int i = 0; i < 5; i++) {
                MyTask task = new MyTask("Task-GEYM-" + i);
                poolExecutor.execute(task);
                TimeUnit.MILLISECONDS.sleep(100);
            }
            poolExecutor.shutdown();
        }

        @Override
        public void run() {
            System.out.println("正在执行 Thread ID:" + Thread.currentThread().getId()
                    + " ,Task name=" + name);
            try {
                TimeUnit.MILLISECONDS.sleep(100);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }
    }
}
